Waist Exercise · Body Weight
Gorilla Chin
A gorilla chin uses a wide, often mixed or unusual grip variation on a chin-up to change the pulling angle and grip demand compared to a standard chin. The forearm involvement comes from the grip challenge itself — an unconventional hand position makes the forearms work harder just to hang on.
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- Waist
- Equipment
- Body Weight
- Target
- Abs
Exercise reference published by PlanWorkouts; see our editorial standards.
How to Do the Gorilla Chin
- Stand with your feet shoulder-width apart and a slight bend in your knees.
- Take an overhand grip on a pull-up bar, slightly wider than shoulder width.
- Hang with your arms fully extended and palms facing forward, away from your body.
- Brace your core and pull yourself upward until your chin clears the bar.
- Pause momentarily at the top, then lower your body back down slowly.
- Repeat for your target rep goal, keeping your core engaged and avoiding any reliance on momentum.
Quick Exercise Facts
Target Muscle Activation
Recommended Sets & Reps by Goal
Moderate weight · 60s rest
Lighter weight · 30–45s rest
Lower slowly for 3 seconds · 60s rest
Technique & Form Tips
Focus on trunk flexion, rotation, or anti-movement stability as required by your specific variation. Maintain the suggested pelvic and spinal orientation to keep tension focused on the abdominal area throughout each repetition or hold.
Common Mistakes to Avoid
- Pulling the neck: For crunch variations, avoid pulling the head forward with your hands; follow the demonstrated arm and head position.
- Lower back arching: Keep the spine controlled to prevent the lower back from hyperextending under the load.
- Excessive speed: Perform movements with deliberate control rather than relying on rapid, bouncing motions.
How to Breathe During This Exercise
Maintain a steady breathing rhythm during the effort.
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Comfort and Control
Choose a load and range you can control. Stop if the movement causes pain. If discomfort persists, stop and ask a qualified professional about an appropriate exercise and range.
General guidance: Mayo Clinic on weight-training technique. Follow the specific movement steps above for this variation.
Muscles Worked
The Gorilla Chin mainly targets your Abs, with your Forearms helping support the movement, along with your Biceps.
More Waist Exercises
3/4 Sit-Up
45° Side Bend
Air Bike
Alternate Heel Touchers
Arm Slingers Hanging Bent Knee Legs
Arm Slingers Hanging Straight Legs
More Abs Exercises
Arms Overhead Full Sit-Up (male)
Assisted Hanging Knee Raise
Assisted Hanging Knee Raise With Throw Down
Assisted Lying Leg Raise With Lateral Throw Down
Assisted Lying Leg Raise With Throw Down
Assisted Motion Russian Twist
Equipment Alternatives
Don't have body weight? These target the same abs with different equipment.
Assisted Hanging Knee Raise
Assisted Motion Russian Twist
Band Alternating V-Up
Barbell Press Sit-Up
FAQ
- What muscles does the Gorilla Chin work?
- The Gorilla Chin mainly works your abs. It also helps strengthen your forearms and biceps. Using good, smooth form makes sure you work the right muscles and avoid unnecessary strain on your joints.
- What equipment do I need for the Gorilla Chin?
- You do the Gorilla Chin with no equipment — just body weight. Make sure your equipment is set up safely before starting. If you work out at home or have limited gear, check out our alternative exercises below.
- What form mistake should I watch for on the Gorilla Chin?
- One mistake to watch for is pulling the neck: For crunch variations, avoid pulling the head forward with your hands; follow the demonstrated arm and head position.. Use a comfortable range and a controlled return; reduce the load if you cannot maintain the demonstrated setup.
- How many sets and reps should I perform on the Gorilla Chin?
- To tone and grow muscle, do 3 to 4 sets of 10 to 15 smooth reps with 60 seconds of rest, focusing on a full stretch and squeezing the muscle at the top of each rep.
- What's a good alternative to the Gorilla Chin?
- The Assisted Hanging Knee Raise trains your abs with assisted and a similar movement pattern. Review its form guide before substituting it, since setup and range of motion can differ.